Cathode or Anode? Without use of electrochemical series?

[Whymme]

Background info:
The experiment featured 2 half cells, connected likewise:
carbon electrode (in beaker with Iodine solution) -> wire -> volt meter -> wire -> copper (Cu2+ solution in beaker) -> salt bridge -> Back to carbon electrode.

Question: How would you determine which electrode is negative (anode) and the other positive without using the electrochemical series?
Is there something about the voltmeter that will tell me? I am currently in a state of complete confusion.

[sweetiepi]

Background info:
The experiment featured 2 half cells, connected likewise:
carbon electrode (in beaker with Iodine solution) -> wire -> volt meter -> wire -> copper (Cu2+ solution in beaker) -> salt bridge -> Back to carbon electrode.

Question: How would you determine which electrode is negative (anode) and the other positive without using the electrochemical series?
Is there something about the voltmeter that will tell me? I am currently in a state of complete confusion.

So, basically, if the voltmeter is showing a positive number, the electrons are supposedly moving in the "conventional current"- from anode to cathode. Therefore the anode will be whichever one you connect to the negative terminal of the ammeter/voltmeter. (I can't remember if I used the ammeter or voltmeter back when I did this prac!)
(Disclaimer- I may of gotten this mucked up, don't quote me )