A 35.16 g piece of copper (which has a molar heat capacity of 24.47 j/c mol) is heated to 80.8 degrees celcius and dropped into a calorimeter containing water (specific heat capacity of water is 4.18 J/g C) initially at 21.5 C. The final temp of the water is 27.1 degrees celcius. Calculate the mass of water in the calorimeter.