Pour melted butter over cracker crumbs in a medium mixing bowl; toss gently until well combined. Drain oysters, reserving liquor. Place one-third of cracker crumb mixture in a buttered 8-inch round cake pan; top with half of oysters, and sprinkle with half of pepper. Repeat procedure.
Add enough half-and-half to oyster liquor to equal 1 cup. Add salt, Worcestershire sauce, and hot sauce; stir well. Pour over oysters; top with remaining cracker crumb mixture. Bake at 350° for 40 minutes. Serve hot.