As a detail guy from way back, I hope you’re being sarcastic...?
Clay bars remove any contaminates that your typical mit wash misses. Little particles of road debris, Iron/metal/carbon dust from brakes, stuff like that that gets into your clear coat. The clay bar removes it.
Cut & buff is the process in which you use compounds to “cut” down through the top layer of the clear coat to remove any scratches/swirl marks, etc. Buffing is done after this to smooth the clear coat top layer back out and give that nice shine we all know and love to see.
Ceramic Coating is a protective chemical layer done to protect the clear coat after you have corrected it. Simply put, it fills in the microscopic imperfections of the clear coat. This makes it very hard for the contaminates I mentioned before to attach to the surface that’s been treated. As an added bonus, your car becomes easier to wash, & stays cleaner for longer.
If you’re being even half serious about how you care for your car now, if you spend the time/money to do this, your Boss will look like new when it’s done. Also-please, just use car wash, a microfiber mit/glove with a bucket, and some good quality car wash to clean your car. A chamois to dry and spray wax after your done is all you need to do to keep your car looking brand new.