Simple Voltaic Cell

Total 505 gm ,Comprising 1 mass of 200 gm, 2 masses of 100 gm, 1 mass of 50 gm, 1 mass of 20 gm, 2 masses of 10 gm, 2 masses of 5 gm, 2 masses of 2 gm, 1 mass of 1 gm. In box