La acera translates into the sidewalk and is an area along the the side of a street that has a hard surface, used by people who are walking. It is common that you find coffee tables along the the side of a street. Finally, our sentence can be written and translated as follows:
<u>IN SPANISH:</u>
<em>Las mesas del café Luna están en </em><em>la acera</em>
<u>IN ENGLISH:</u>
<em>Luna coffee tables are on </em><em>the sidewalk</em>