COOLING COIL CONDENSATE CAN BE CALCULATED BY THE FOLLOWING FORMULA" CC CONDENSATE (GPM)=(4.5/500)*CFM*CHANGE IN HUMIDITY RATIO OF THE AIR(LB/MOISTER/LB OF DRY AIR)
It is not possible to calculate the area given only the volume.
You cannot calculate volume of surface area. If you meant 20m3, then the volume would be 20,000 litres.
Not enough information. To calculate mass, you would need volume and density (mass = volume x density).
Bulk density = dry weight / volume, then by knowing the dry weight and bulk density we can calculate the volume.