In making a specific galvanic cell, explain how one decides on the electrodes and the solutions to use in the cell.

To create a specific galvanic cell, one must first consider the desired redox reaction, consisting of an oxidation half-reaction and a reduction half-reaction. Then, select electrodes made of materials that facilitate these reactions - an easily oxidized material for the anode and an easily reduced material for the cathode that doesn't react chemically with the electrolyte solution. The electrolyte solutions should contain ions that participate in the redox reaction and be electrically conductive without reacting with the electrode materials. Finally, set up the galvanic cell with the electrodes in their respective solutions, connected by a conducting wire and a salt bridge or porous barrier to maintain electrical neutrality.