I am so sorry if this is the wrong subforum, I think it fits here, but if not please go easy on me. It's been a long day.

I have a bunch of questions that are all similar for practice. Basically area to volume. I'm lost. Here's the first one we have:

Suppose a 2 cm thick layer of ice can be melted every day. Assuming a surface area of 4 km2, calculate the corresponding volume of ice melted each day in Litres.

I have about ten of them, if I could just understand how to do it then I'm sure I could plug the numbers in, however I am just lost on this. It's supposed to be review, but I don't really remember ever actually understanding how to do this. Any help is appreciated math gurus.