Every once in awhile my fridge will leak water from somewhere underneath. I took off the horizontal grill along the base of the fridge and looked underneath to find a white, plastic tray of some kind (see photo below). My fridge has an in-door (not indoor) ice & water dispenser, so maybe this is what the tray is for. I believe the tray is broken and doesn't lie perfectly horizontal, which may be why water is overflowing and spilling out the bottom.
Is there an easy way to replace this white tray? Or would the leak be coming from somewhere else?