Answer:
Waitress! I want to order a chocolate cake for the table please.
Step-by-step explanation:
If we take a look at the sentence and take it apart, we'll get this.
Serveuse! : Waitress
Je voudrais : I want to
commander : order
un gâteau au chocolat : a chocolate cake
pour la table: for the table
s'il vous plaît: please
So, altogether the sentence would go like this,
Waitress! I want to order a chocolate cake for the table please.