Hey @rschneider6041 it does take a couple days usually to get your account verified, at which point you should get an email. You should click on the "Solving Problems" text in the lesson plan which will take you to that lesson on code.org. Once your account is verified you'll be able to see the Key there in a blue box on the bottom of the screen. The gray "Key" text will always be gray, though I can see how that may have been a source of confusion.
Hope that helps!