To calculate the standard electrode potential for the redox reaction between copper and silver ions, we first need to identify the oxidation and reduction half-reactions. In this case, copper is being reduced gaining electrons and silver is being oxidized losing electrons . The balanced redox reaction is:Cu2+ aq + 2Ag s Cu s + 2Ag+ aq Now, we can use the given standard electrode potentials E for each half-reaction to find the overall standard electrode potential for the redox reaction. The formula to calculate the standard electrode potential is:E cell = E reduction - E oxidation In this case, the reduction half-reaction is for copper, and the oxidation half-reaction is for silver. Plugging in the given values:E cell = +0.34 V - +0.80 V E cell = -0.46 VThe standard electrode potential for the redox reaction between copper and silver ions is -0.46 V.