I have Cubase AI 8. How do you put your project onto an audio CD so that it can be heard as a song on a normal CD player (how do you create an audio CD) ?
Cubase has no facility for this. You should export your mixdown(s) to .wav file, 44.1kHz-16 bit and assemble and burn to CD in a seprate program. Wavelab is specialized for this, but there are other (including free) options - usually with less options too.
If on windows just use the Windows Media Player to burn a CD.
Or if on Windows and/or Mac, you can also use iTunes to burn a CD.