"A voltaic cell consist of Pb/Pb2+ half cell and a Cu/Cu2+ half cell at 25 degrees Celcius. The initial concentrations of Pb2+ and Cu2+ are 5.00 x...

"A voltaic cell consist of Pb/Pb2+ half cell and a Cu/Cu2+ half cell at 25 degrees Celcius. The initial concentrations of Pb2+ and Cu2+ are 5.00 x 10^-2 M and 1.50 M respectively. Pb E is (-0.13) and Cu E is (+0.34). I need the initial cell potential and when Cu2+ has fallen to 0.250 M and also what the concentrations of Cu2+ and Pb2+ are when the cell potential falls to 0.350 V. Please show work - so I can learn."