You can do that, some people have done it to great success, either way you need to cover them from your other fish.
What species of cory do you have? Are you sure theyre cory eggs? Do you have some sort of airstone available to you?
Basically: Gently remove the eggs from the glass wall(you can use a stanley knife or razor blade) and thermometer and place them in the breeder net(this goes for whatever laid them) Give them some aeration, or put them nearish to filtration outlet to maximise water flow. Then its just a case of waiting. Remove any eggs that go white and fungused as they are infertile.
Hope this helps,
Btw what type of cories do you have.