To Marinate: Put chicken breasts in a nonporous glass dish or bowl. Drizzle melted butter or margarine over chicken and season with salt and ground black pepper. Cover dish and refrigerate overnight.
Preheat oven to 375 degrees F (190 degrees C).
Put potato chip crumbs in a shallow dish or bowl. Roll chicken in crumbs until well coated, then place in a lightly greased 9x13 inch baking dish.
Bake at 375 degrees F (190 degrees C) for 45 minutes or until chicken juices run clear.
