I agree with the previous speaker ... The support surface is 40 cm, the rear air space is 3 cm.
So setting it up should work, the question is how many people will walk past it ....

And by the way - I would buy the printer again ....

Here's how it looks for me: My WF-C5710 stands on a 40 cm deep piece of furniture on wheels. So the footprint fits exactly on it. When the upper rear paper feed is closed, the printer protrudes 3 cm above the furniture at the back. Total depth is 43 cm. If the upper rear paper feed is opened, however, the printer protrudes approx. 8cm beyond the furniture at the rear. Total depth is 48 cm. The 47 cm total depth would only fit if the rear upper paper feed is not in use and folded in. However, since the top paper feed is movable, it can be tilted slightly upwards when placed against a wall, so the 47 cm total depth would be sufficient. By the way, the front of the printer with the paper output folded out protrudes about 16.5 cm above the floor space.