To calculate the potential difference between the two electrodes, we can use the Nernst equation. However, since both solutions have the same concentration 0.1M , the Nernst equation simplifies to the difference in standard reduction potentials.The cell potential E_cell can be calculated using the following equation:E_cell = E_cathode - E_anodeIn this case, the copper electrode has a higher standard reduction potential, so it will act as the cathode, and the zinc electrode will act as the anode.E_cathode = +0.34 V Cu2+/Cu E_anode = -0.76 V Zn2+/Zn Now, we can calculate the cell potential:E_cell = +0.34 V - -0.76 V E_cell = 0.34 V + 0.76 VE_cell = 1.10 VThe potential difference between the two electrodes at 25C is 1.10 V.