Questions:
What is the wattage? How are these being wired? parallel, series, combination? Your wiring of the panels will affect output voltage and amps.
Assuming you are connecting them up to a solar charge controller to charge a battery bank, what voltage is the battery bank? (12,24,48)? What is the max voltage of the charge controller?
The voltage out of your array must be a bit above the voltage of the battery bank or no charging will happen. (see specs of your charge controller)
But the voltage out of the array must be under the max voltage of the charge controller, with room to spare for cold weather if that is a concern, as voltage goes up in cold weather.
One you know all of this, use a voltage drop calculator to determine if 10awg will be enough. Max suggested loss is 2-3%, but it can be a little more if it is still above the minimum. charge voltage for your controller and battery
Here is a voltage drop calculator
www.southwire.com
Once you have the specs for your panels (from the data sheet, (STC values) sometimes stamped to the back of the panel as well, there is more to say, including things concerning VoC, Isc, etc, but we'll hold off on that for now....