Tray

 public void ReceiveCurrentTray(GameObject _tray)
    {
        _tray.transform.SetParent(customers[0].handBone);
        _tray.GetComponent<Rigidbody>().constraints = RigidbodyConstraints.FreezeAll;
        _tray.GetComponent<GameItem>().enabled = false;
        _tray.transform.localPosition = Vector3.zero;
        _tray.transform.localRotation = Quaternion.identity;
         _tray.layer = LayerMask.NameToLayer("World_Wall");
        shuffleCustomersRoutine = ShuffleCustomersRoutine(_tray);
        StartCoroutine(shuffleCustomersRoutine);
    }