For the voltaic cel based on this reaction:
`2Ag^(+)(aq) + Cu rightarrow Cu^(2+)(aq) + 2Ag`
The concentration of the aqueous ions and sizes of the electrodes can be changed independently. Which statement is correct?
A. Increasing the [Cu^2+)] two fold has the same effect on the cell voltage as increasing the `[Ag^(+)]` four-fold.
B. Decreasing the `[Cu^(2+)]` two-fold has the same effect on the cell voltage as increasing the `[Ag^(+)]` by the same factor.
C. Decreasing the `[Cu^(2+)]` ten-fold has less effect on the cell voltage than decreasing the `[Ag^(+)]` by the same factor.
D. Doubling the sizes of the cathode has exactly the same effect on the cell voltage as decreases the `[Cu^(2+)]` by a factor of two.
