how to enable collider and after the hit to disable

 [SerializeField]
          public EdgeCollider2D WeaponCollider;
  -------------------------------------------------------------------------------------
      if (Input.GetKeyDown(KeyCode.Space))
              {
                  playerAnimator.Play("AttackAnimation");
                  playerAnimator.GetComponent<PlayerOneScript>().MeleeAttack();
              }
          }
      
          public void MeleeAttack()
          {
              WeaponCollider.enabled = true;
              StartCoroutine(DisableWeaponCollider());
           }
 
 
 private IEnumerator DisableWeaponCollider()
 {
        WeaponCollider.enabled = false;
        yield return WaitForSeconds(1.0f);
 }
 
 Did't understand what you needed exactly but I think this will help you disable the collider after 1 second.

I'm working on a game that requires something similar and this is basically how I've done it.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class answer : MonoBehaviour {
 
     public Animator playerAnimator;
 
     public EdgeCollider2D weaponCollider;
 
     //This is true while collider is ENABLED and player is attacking. 
     //We'll check for this when checking for input to make sure player isn't already attacking.
     private bool attacking;
 
     //This is the duration of the attack and how long the collider will be ENABLED for. 
     //I set its default value to 0.5, but it can be 1 or anything else.
     public float attackDuration = 0.5f;
 
     //This is the exact time in seconds since the game started that the attack will end and the collider will be DISABLED. 
     //We'll calculate this by adding the "attackDuration" to the exact game time in seconds when the attack began.
     private float timeToAttackEnd; 
 
     // Use this for initialization
     void Start () {
         
     }
     
     // Update is called once per frame
     void Update () {
 
         //Check for input and if player is attacking.
         if(Input.GetKeyDown(KeyCode.Space) && !attacking)
         {
             playerAnimator.Play("AttackAnimation");
 
             attacking = true;
 
             //Set the exact time that attack will end to be the TIME the attack is called PLUS the DURATION of the attack we specified earlier.
             timeToAttackEnd = Time.time + attackDuration;
         }
 
         //Check for attacking
         if(attacking)
         {
             //This will be called every frame while attacking is true so we can check that the TIME to end the attack has been reached.
             MeleeAttack();
         }
         
     }
 
     public void MeleeAttack()
     {
         //If the TIME to end the attack has been reached, DISABLE the collider 
         //and set "attacking" to false so this function will no longer be called and we can attack again if we choose.
         if(Time.time > timeToAttackEnd)
         {
             weaponCollider.enabled = false;
             attacking = false;
         }
 
         //every frame BEFORE the TIME to end the attack is reached, the collider will be ENABLED.
         else
         {
             weaponCollider.enabled = true;
         }
 
     }
 }