A battery is wanted to design using Ni2+/Ni and Cu2+ /Cu redox couples to obtain the highest cell potential that is available with these contents. a) Identify and explain the anode and the cathode sides, write the reactions b) Calculate the standard cell potential in volts c) Calculate the free energy liberated per mole in kJ. d) What is the minimum amount of Cu needed to maintain the battery operational during 42 h if the current is 0.1 A? ACu = 63,5 g/mole