Translate the given Spanish text to English

[EX Q]: An integrated tray table is provided for a motor vehicle.
[EX A]: Se proporciona una bandeja extensible integrada para un vehículo de motor.

[EX Q]: Each cell is operated in series.
[EX A]: Cada celda se opera en serie.

[EX Q]: The preferred medium is aqueous.
[EX A]:
El medio preferido es acuoso.