Wall thickness for shower shelf

Hello,
is a wall thickness of 17.5 cm aerated concrete (load-bearing wall) sufficient for a recessed shelf in the shower with a depth of 10 cm?

Thank you.

No, without proof of the structural analysis no one will manufacture that for you.

Create a pretext. Then you can also make a storage compartment.

Not the best photo, but it serves its purpose.

With us, the storage compartment is integrated into the pre-wall (drywall). Behind the pre-wall, the supply line for the overhead shower, etc., is then also installed.

Check the search function ;)